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| 提高P91钢焊接接头冲击韧性的研究 | |
| 引用本文： | 蔡连元,潘颖平,李慧中,魏烈和,陈波,李益民. 提高P91钢焊接接头冲击韧性的研究[J]. 中国电力, 2004, 37(3): 47-51 |
| 作者姓名： | 蔡连元 潘颖平 李慧中 魏烈和 陈波 李益民 |
| 作者单位： | 1. 西固热电有限责任公司,甘肃,兰州,730060 2. 甘肃电力公司焊接培训中心,甘肃,兰州,730060 3. 国电热工研究院,陕西,西安,710032 |
| 摘 要： | 探讨影响P91钢焊接接头冲击韧性的几个因素，对用P91钢制造的主蒸汽管道的焊接工艺进行试验。结果表明，焊缝的拉伸强度高于母材，焊缝弯曲试样外弧面未发现开裂，焊缝金相组织正常，室温冲击韧性大幅度提高。 |
| 关 键 词： | 火电厂 主蒸汽管道 P91钢 焊接接头 冲击韧性 拉伸强度 焊缝 |
| 文章编号： | 1004-9649(2004)03-0047-05 |
| 修稿时间： | 2003-09-26 |
Study on raising the impact toughness of P91 steel weld joint |
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| CAI Lian-yuan,PAN Ying-ping,LI Hui-zhong,WEI Lie-he,CHEN Bo,LI Yi-min Xigu Thermal Power Co.,Ltd.,Lanzhou China Weld Training Center of Gansu Power Co.,Lanzhou China Thermal Power Research Institute,Xi'an China. Study on raising the impact toughness of P91 steel weld joint[J]. Electric Power, 2004, 37(3): 47-51 | |
| Authors: | CAI Lian-yuan PAN Ying-ping LI Hui-zhong WEI Lie-he CHEN Bo LI Yi-min Xigu Thermal Power Co. Ltd. Lanzhou China Weld Training Center of Gansu Power Co. Lanzhou China Thermal Power Research Institute Xi'an China |
| Affiliation: | CAI Lian-yuan,PAN Ying-ping,LI Hui-zhong,WEI Lie-he,CHEN Bo,LI Yi-min Xigu Thermal Power Co.,Ltd.,Lanzhou 730060 China Weld Training Center of Gansu Power Co.,Lanzhou 730060 China Thermal Power Research Institute,Xi'an 710032 China |
| Abstract: | Several factors affecting the impact toughness of P91 steel weld joint were approached,and the welding technology of P91 steelmain steam pipes was tested. The results showed that the tensile strength of weld seam was higher than that of parent material, no crackappeared on the outside arc surface of weld seam bending test sample,the metallographic structure of weld seam was normal and the impacttoughness at room temperature was greatly raised. |
| Keywords: | main steam pipe P91 steel impact toughness (ductility)weld joint welding technology |
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